California has struggled for five years to create a politically palatable “ethnic studies” curriculum that would teach high schoolers how systemic racism, predatory capitalism, heteropatriarchy and other “structures of oppression” are foundational to American society. Now, after more than 82,000 public comments, and four major rewrites, the state Board of Education is expected to approve the latest version next week, clearing the way for lawmakers to make a semester-long course in the material a graduation requirement for all of California’s 1.7 million high school students.